[INFO] cloning repository https://github.com/NakhodaAmir/rust_chess
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/NakhodaAmir/rust_chess" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNakhodaAmir%2Frust_chess", kill_on_drop: false }`
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[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6ce79876a840c2f646239f6fa45dc905f32a6310
[INFO] testing NakhodaAmir/rust_chess against 1.97.0-beta.6 for beta-1.98-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNakhodaAmir%2Frust_chess" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/NakhodaAmir/rust_chess
[INFO] finished tweaking git repo https://github.com/NakhodaAmir/rust_chess
[INFO] tweaked toml for git repo https://github.com/NakhodaAmir/rust_chess written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/NakhodaAmir/rust_chess on toolchain 1.97.0-beta.6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.97.0-beta.6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/NakhodaAmir/rust_chess already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.97.0-beta.6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3d5ced03c013a94a2f102a4510f48a6e9184255caf5fd8244f58017bde7f5210" "sleep" "infinity", kill_on_drop: false }`
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[INFO] [stderr]    Compiling rust_chess v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `core::error`
[INFO] [stdout]  --> src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use core::error;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `HashMap`
[INFO] [stdout]  --> src/main.rs:2:24
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::collections::{HashMap, HashSet};
[INFO] [stdout]   |                        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::Cursor`
[INFO] [stdout]  --> src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::io::Cursor;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ops::Deref`
[INFO] [stdout]  --> src/main.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::ops::Deref;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `map_macro::hash_set`
[INFO] [stdout]  --> src/main.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use map_macro::hash_set;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `ImageBuffer`, `Pixel`, and `Rgba`
[INFO] [stdout]  --> src/main.rs:9:31
[INFO] [stdout]   |
[INFO] [stdout] 9 | use image::{GenericImageView, ImageBuffer, Pixel, Rgba};
[INFO] [stdout]   |                               ^^^^^^^^^^^  ^^^^^  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Size`
[INFO] [stdout]   --> src/main.rs:11:31
[INFO] [stdout]    |
[INFO] [stdout] 11 | use winit::dpi::{LogicalSize, Size};
[INFO] [stdout]    |                               ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `WindowAttributes`
[INFO] [stdout]   --> src/main.rs:15:41
[INFO] [stdout]    |
[INFO] [stdout] 15 | use winit::window::{CursorIcon, Window, WindowAttributes, WindowButtons, WindowId};
[INFO] [stdout]    |                                         ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `window_id`
[INFO] [stdout]    --> src/main.rs:125:9
[INFO] [stdout]     |
[INFO] [stdout] 125 |         window_id: WindowId,
[INFO] [stdout]     |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_window_id`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/main.rs:735:21
[INFO] [stdout]     |
[INFO] [stdout] 735 |                     _ => (HashSet::new(), HashSet::new()),
[INFO] [stdout]     |                     ^ no value can reach this
[INFO] [stdout]     |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]    --> src/main.rs:735:21
[INFO] [stdout]     |
[INFO] [stdout] 645 |                     Color::White => {
[INFO] [stdout]     |                     ------------ matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 690 |                     Color::Black => {
[INFO] [stdout]     |                     ------------ matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 735 |                     _ => (HashSet::new(), HashSet::new()),
[INFO] [stdout]     |                     ^ collectively making this unreachable
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `None` is never constructed
[INFO] [stdout]   --> src/main.rs:43:5
[INFO] [stdout]    |
[INFO] [stdout] 42 | enum DrawImageType {
[INFO] [stdout]    |      ------------- variant in this enum
[INFO] [stdout] 43 |     None,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `CastlingRights` is never used
[INFO] [stdout]   --> src/main.rs:59:6
[INFO] [stdout]    |
[INFO] [stdout] 59 | enum CastlingRights {
[INFO] [stdout]    |      ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `FEN` is never constructed
[INFO] [stdout]   --> src/main.rs:69:8
[INFO] [stdout]    |
[INFO] [stdout] 69 | struct FEN {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `white_long_castle`, `white_short_castle`, `black_long_castle`, and `black_short_castle` are never read
[INFO] [stdout]    --> src/main.rs:98:5
[INFO] [stdout]     |
[INFO] [stdout]  85 | struct App<'a> {
[INFO] [stdout]     |        --- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout]  98 |     white_long_castle: bool,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]  99 |     white_short_castle: bool,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 100 |     black_long_castle: bool,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 101 |     black_short_castle: bool,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 36s
[INFO] running `Command { std: "docker" "inspect" "e63d3da3d5aa571b320cdebda77a3f28507ba8cb2c81f0c077911c5d127034a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "e63d3da3d5aa571b320cdebda77a3f28507ba8cb2c81f0c077911c5d127034a1" "/opt/rustwide/cargo-home/bin/cargo" "+1.97.0-beta.6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_chess v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `core::error`
[INFO] [stdout]  --> src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use core::error;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `HashMap`
[INFO] [stdout]  --> src/main.rs:2:24
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::collections::{HashMap, HashSet};
[INFO] [stdout]   |                        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::Cursor`
[INFO] [stdout]  --> src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::io::Cursor;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ops::Deref`
[INFO] [stdout]  --> src/main.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::ops::Deref;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `map_macro::hash_set`
[INFO] [stdout]  --> src/main.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use map_macro::hash_set;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `ImageBuffer`, `Pixel`, and `Rgba`
[INFO] [stdout]  --> src/main.rs:9:31
[INFO] [stdout]   |
[INFO] [stdout] 9 | use image::{GenericImageView, ImageBuffer, Pixel, Rgba};
[INFO] [stdout]   |                               ^^^^^^^^^^^  ^^^^^  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Size`
[INFO] [stdout]   --> src/main.rs:11:31
[INFO] [stdout]    |
[INFO] [stdout] 11 | use winit::dpi::{LogicalSize, Size};
[INFO] [stdout]    |                               ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `WindowAttributes`
[INFO] [stdout]   --> src/main.rs:15:41
[INFO] [stdout]    |
[INFO] [stdout] 15 | use winit::window::{CursorIcon, Window, WindowAttributes, WindowButtons, WindowId};
[INFO] [stdout]    |                                         ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `window_id`
[INFO] [stdout]    --> src/main.rs:125:9
[INFO] [stdout]     |
[INFO] [stdout] 125 |         window_id: WindowId,
[INFO] [stdout]     |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_window_id`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/main.rs:735:21
[INFO] [stdout]     |
[INFO] [stdout] 735 |                     _ => (HashSet::new(), HashSet::new()),
[INFO] [stdout]     |                     ^ no value can reach this
[INFO] [stdout]     |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]    --> src/main.rs:735:21
[INFO] [stdout]     |
[INFO] [stdout] 645 |                     Color::White => {
[INFO] [stdout]     |                     ------------ matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 690 |                     Color::Black => {
[INFO] [stdout]     |                     ------------ matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 735 |                     _ => (HashSet::new(), HashSet::new()),
[INFO] [stdout]     |                     ^ collectively making this unreachable
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `None` is never constructed
[INFO] [stdout]   --> src/main.rs:43:5
[INFO] [stdout]    |
[INFO] [stdout] 42 | enum DrawImageType {
[INFO] [stdout]    |      ------------- variant in this enum
[INFO] [stdout] 43 |     None,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `CastlingRights` is never used
[INFO] [stdout]   --> src/main.rs:59:6
[INFO] [stdout]    |
[INFO] [stdout] 59 | enum CastlingRights {
[INFO] [stdout]    |      ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `FEN` is never constructed
[INFO] [stdout]   --> src/main.rs:69:8
[INFO] [stdout]    |
[INFO] [stdout] 69 | struct FEN {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `white_long_castle`, `white_short_castle`, `black_long_castle`, and `black_short_castle` are never read
[INFO] [stdout]    --> src/main.rs:98:5
[INFO] [stdout]     |
[INFO] [stdout]  85 | struct App<'a> {
[INFO] [stdout]     |        --- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout]  98 |     white_long_castle: bool,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]  99 |     white_short_castle: bool,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 100 |     black_long_castle: bool,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 101 |     black_short_castle: bool,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.17s
[INFO] running `Command { std: "docker" "inspect" "e63d3da3d5aa571b320cdebda77a3f28507ba8cb2c81f0c077911c5d127034a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "e63d3da3d5aa571b320cdebda77a3f28507ba8cb2c81f0c077911c5d127034a1" "/opt/rustwide/cargo-home/bin/cargo" "+1.97.0-beta.6" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `core::error`
[INFO] [stdout] 
[INFO] [stderr]  --> src/main.rs:1:5
[INFO] [stdout] running 0 tests
[INFO] [stderr]   |
[INFO] [stdout] 
[INFO] [stderr] 1 | use core::error;
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `HashMap`
[INFO] [stderr]  --> src/main.rs:2:24
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::collections::{HashMap, HashSet};
[INFO] [stderr]   |                        ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io::Cursor`
[INFO] [stderr]  --> src/main.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::io::Cursor;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::ops::Deref`
[INFO] [stderr]  --> src/main.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::ops::Deref;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `map_macro::hash_set`
[INFO] [stderr]  --> src/main.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use map_macro::hash_set;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `ImageBuffer`, `Pixel`, and `Rgba`
[INFO] [stderr]  --> src/main.rs:9:31
[INFO] [stderr]   |
[INFO] [stderr] 9 | use image::{GenericImageView, ImageBuffer, Pixel, Rgba};
[INFO] [stderr]   |                               ^^^^^^^^^^^  ^^^^^  ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Size`
[INFO] [stderr]   --> src/main.rs:11:31
[INFO] [stderr]    |
[INFO] [stderr] 11 | use winit::dpi::{LogicalSize, Size};
[INFO] [stderr]    |                               ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `WindowAttributes`
[INFO] [stderr]   --> src/main.rs:15:41
[INFO] [stderr]    |
[INFO] [stderr] 15 | use winit::window::{CursorIcon, Window, WindowAttributes, WindowButtons, WindowId};
[INFO] [stderr]    |                                         ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `window_id`
[INFO] [stderr]    --> src/main.rs:125:9
[INFO] [stderr]     |
[INFO] [stderr] 125 |         window_id: WindowId,
[INFO] [stderr]     |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_window_id`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]    --> src/main.rs:735:21
[INFO] [stderr]     |
[INFO] [stderr] 735 |                     _ => (HashSet::new(), HashSet::new()),
[INFO] [stderr]     |                     ^ no value can reach this
[INFO] [stderr]     |
[INFO] [stderr] note: multiple earlier patterns match some of the same values
[INFO] [stderr]    --> src/main.rs:735:21
[INFO] [stderr]     |
[INFO] [stderr] 645 |                     Color::White => {
[INFO] [stderr]     |                     ------------ matches some of the same values
[INFO] [stderr] ...
[INFO] [stderr] 690 |                     Color::Black => {
[INFO] [stderr]     |                     ------------ matches some of the same values
[INFO] [stderr] ...
[INFO] [stderr] 735 |                     _ => (HashSet::new(), HashSet::new()),
[INFO] [stderr]     |                     ^ collectively making this unreachable
[INFO] [stderr]     = note: `#[warn(unreachable_patterns)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant `None` is never constructed
[INFO] [stderr]   --> src/main.rs:43:5
[INFO] [stderr]    |
[INFO] [stderr] 42 | enum DrawImageType {
[INFO] [stderr]    |      ------------- variant in this enum
[INFO] [stderr] 43 |     None,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: enum `CastlingRights` is never used
[INFO] [stderr]   --> src/main.rs:59:6
[INFO] [stderr]    |
[INFO] [stderr] 59 | enum CastlingRights {
[INFO] [stderr]    |      ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `FEN` is never constructed
[INFO] [stderr]   --> src/main.rs:69:8
[INFO] [stderr]    |
[INFO] [stderr] 69 | struct FEN {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: fields `white_long_castle`, `white_short_castle`, `black_long_castle`, and `black_short_castle` are never read
[INFO] [stderr]    --> src/main.rs:98:5
[INFO] [stderr]     |
[INFO] [stderr]  85 | struct App<'a> {
[INFO] [stderr]     |        --- fields in this struct
[INFO] [stderr] ...
[INFO] [stderr]  98 |     white_long_castle: bool,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]  99 |     white_short_castle: bool,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 100 |     black_long_castle: bool,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 101 |     black_short_castle: bool,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `rust_chess` (bin "rust_chess" test) generated 14 warnings (run `cargo fix --bin "rust_chess" -p rust_chess --tests` to apply 9 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.27s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rust_chess-1de2705e74b4b7dc)
[INFO] running `Command { std: "docker" "inspect" "e63d3da3d5aa571b320cdebda77a3f28507ba8cb2c81f0c077911c5d127034a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e63d3da3d5aa571b320cdebda77a3f28507ba8cb2c81f0c077911c5d127034a1", kill_on_drop: false }`
[INFO] [stdout] e63d3da3d5aa571b320cdebda77a3f28507ba8cb2c81f0c077911c5d127034a1
